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Handle for a catheter and corresonding catheter

a technology of corresonant catheters and catheter handles, which is applied in the field of catheter handling, can solve problems such as compromised catheter functions, and achieve the effect of improving the handling of catheters

Active Publication Date: 2020-04-16
BIOTRONIK AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a simple and reliable way to operate a catheter that can release a self-expanding stent. The method involves pressing a button to activate the release and then moving a brake hose longitudinally in a sleeve and relative to the inner shaft in a proximal direction. This action is achieved by rotating a reel connected to the pull cable, which winds up the pull cable and / or brake hose. The technical effect of this method is a more efficient and reliable way to release a stent using a catheter that is simple and easy to operate.

Problems solved by technology

Handles of known catheters often have the problem that as the pull cable is retracted it winds around the inner shaft of the catheter.
The function of the catheter is compromised as a result.

Method used

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  • Handle for a catheter and corresonding catheter
  • Handle for a catheter and corresonding catheter
  • Handle for a catheter and corresonding catheter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019]A preferred handle according to the invention also has the advantage that a winding of the pull cable around the inner shaft is prevented due to the arrangement of the pull cable and the inner shaft in separate openings (lumen) of the brake hose. In addition, the inner shaft is guided by the brake hose and the sleeve during the release, for example, of a stent at the distal end of the catheter (catheter tip). This stabilises the inner shaft. The pull cable is preferably formed as a pull wire. The pull cable is fixedly arranged in the first opening of the brake hose and is thus connected to the brake hose.

[0020]The sleeve preferably has a length (dimension in the longitudinal direction of the sleeve), which is greater than the length of the implant to be released. This means that the sleeve can protrude beyond the distal end of the handle. For example, the implant can be a self-expanding extent. In systems suitable for a stent up to 200 mm long, the overall length (handle (appr...

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Abstract

A handle for a catheter having an inner shaft and a retractable shaft. The handle includes a housing, a pull cable and a release button mounted movably on the housing. A sleeve is secured in the housing and a brake hose is guided movably in the longitudinal direction in a continuous opening of the sleeve. The brake hose has a first continuous opening for arrangement of the pull cable and a second continuous opening for arrangement of the inner shaft. The brake hose configured and arranged such that its position relative to the sleeve in a first state is fixed by the release button, and such that the brake hose in a second state is displaceable after actuation of the release button together with the pull cable in the longitudinal direction of the sleeve and relative to the sleeve and the inner shaft in the proximal direction in order to retract the retractable shaft, such that the retractable shaft can be connected to the pull cable.

Description

PRIORITY CLAIM[0001]This application is a 35 U.S.C. 371 US National Phase and claims priority under 35 U.S.C. § 119, 35 U.S.C. 365(b) and all applicable statutes and treaties from prior PCT Application PCT / EP2018 / 059011, which was filed Apr. 9, 2018, which application claimed priority from European Application EP 17169996.0, which was filed May 8, 2017.FIELD OF THE INVENTION[0002]The invention relates to a handle for a catheter having an inner shaft and a retractable shaft, wherein the handle has a housing and a release button mounted movably on the housing.BACKGROUND[0003]Catheters are generally understood to be tubes or hoses of different diameter made of different materials, by which hollow organs such as the bladder, stomach, intestine, blood vessels or the heart can be probed, emptied, filled, flushed or otherwise treated in a minimally invasive manner. The tubular or hose-like portion of the catheter to be introduced into the body of a human or animal that is to be treated is ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61F2/962
CPCA61F2/962A61F2002/9517A61F2/9517A61F2/966
Inventor WESTHOFF, FELIXROTHFUCHS, NURIA
Owner BIOTRONIK AG
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